startTimecode
The start timecode of the media file, in HH:MM:SS:FF format (or HH:MM:SS;FF for drop frame timecode). Note that this field is null when the container does not include an embedded start timecode.
The start timecode of the media file, in HH:MM:SS:FF format (or HH:MM:SS;FF for drop frame timecode). Note that this field is null when the container does not include an embedded start timecode.